JPS56116864A - Hot galvanization for steel pipe - Google Patents

Hot galvanization for steel pipe

Info

Publication number
JPS56116864A
JPS56116864A JP1788280A JP1788280A JPS56116864A JP S56116864 A JPS56116864 A JP S56116864A JP 1788280 A JP1788280 A JP 1788280A JP 1788280 A JP1788280 A JP 1788280A JP S56116864 A JPS56116864 A JP S56116864A
Authority
JP
Japan
Prior art keywords
steel pipes
excessive
onto
zinc
steel pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1788280A
Other languages
Japanese (ja)
Inventor
Toyohiro Nagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP1788280A priority Critical patent/JPS56116864A/en
Publication of JPS56116864A publication Critical patent/JPS56116864A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/38—Wires; Tubes
    • C23C2/385—Tubes of specific length

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To form a lustrous galvanized layer of a uniform thickness on both inside and outside of a steel pipe by a method in which a steel pipe pulled up from a galvanizing bath is inclined, heated rapidly, and removed of its excessive molten zinc on the surfaces by blasting a compressed gas onto the surfaces. CONSTITUTION:A plurality of steel pipes 20 whose surfaces are cleaned by pretreatments are sent onto a roller conveyer 6 above a galvanizing bath 1, and then transferred to the receiving arm 12 of a dipping beam 8. Then, the roller 6 is set back, the arm 12 is lowered at the same time, the steel pipes 20 are dipped in the galvanizing bath 21 and pulled up after the lapse of a certain time, the beam 8 is inclined, and then excessive molten zinc on the inside and outside of the steel pipes 20 is removed. Then, the steel pipes 20 are transferred onto the conveyer 6 and then heated their outsides by a quick heater 16 while being sent on the roller conveyer 3 so as to melt the excessive coagulated zinc on the surfaces, and then a compressed gas is blasted onto the surfaces by a nozzle 17 to blow off the excessive zinc and impurities on the surfaces of the steel pipes. Thus, a lustrous galvanized layer of a uniform thickness can be formed on both the inside and outside of the steel pipes.
JP1788280A 1980-02-18 1980-02-18 Hot galvanization for steel pipe Pending JPS56116864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1788280A JPS56116864A (en) 1980-02-18 1980-02-18 Hot galvanization for steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1788280A JPS56116864A (en) 1980-02-18 1980-02-18 Hot galvanization for steel pipe

Publications (1)

Publication Number Publication Date
JPS56116864A true JPS56116864A (en) 1981-09-12

Family

ID=11956064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1788280A Pending JPS56116864A (en) 1980-02-18 1980-02-18 Hot galvanization for steel pipe

Country Status (1)

Country Link
JP (1) JPS56116864A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024290A1 (en) 2009-08-28 2011-03-03 大和鋼管工業株式会社 Method and system for manufacturing metal-plated steel pipe
CN102365384A (en) * 2009-09-17 2012-02-29 逢坂佳祐 Blower for hot-dip galvanized steel pipe, and method using said blower to manufacture hot-dip galvanized steep pipe
CN102808144A (en) * 2011-05-29 2012-12-05 邯郸市正大制管有限公司 Hot-galvanizing and long-rod internal blowing synchronized cooling process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024290A1 (en) 2009-08-28 2011-03-03 大和鋼管工業株式会社 Method and system for manufacturing metal-plated steel pipe
JP5669739B2 (en) * 2009-08-28 2015-02-12 大和鋼管工業株式会社 Method and system for manufacturing metal plated steel pipe
US9249489B2 (en) 2009-08-28 2016-02-02 Daiwa Steel Tube Industries Co., Ltd. Method and system for manufacturing metal-plated steel pipe
CN102365384A (en) * 2009-09-17 2012-02-29 逢坂佳祐 Blower for hot-dip galvanized steel pipe, and method using said blower to manufacture hot-dip galvanized steep pipe
CN102808144A (en) * 2011-05-29 2012-12-05 邯郸市正大制管有限公司 Hot-galvanizing and long-rod internal blowing synchronized cooling process

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